text: function Patient(name, age, weight, height) {
  
    var clazz = {
      print: function() {
        console.log(name + " has " + age + " years.");
      },
      beats: function(){
        return age * 365 * 24 * 60 * 80;
      },
      imc: function(){
        return weight / (height * height);
      }
    }
  
    return clazz;
  }
  